Akeno Himejima

Akeno Himejima is a one of the many female heroes of High School DxD. She is first-year college student at Kuoh Academy and is Rias Gremory's Queen as well as her best friend. Akeno is one of Kuoh Academy's Two Great Ladies alongside Rias.

Personality
She is first seen to be very elegant and gentle, but is in fact highly sadistic in battle and doesn't show any mercy or remorse towards the enemies she slays. She also loves to tease Issei and Rias. Akeno has also stated that she has some masochism in her as well. She is shown to be somewhat vulgar, flirting with Issei as such and doesn't care if Rias knows or saw her doing the act, but does care enough to not steal him away from her. After falling in love with him, she becomes very seductive and obsessed to have an affair with Issei whenever she finds a chance, which is often interrupted by Rias and some others.

She also has a weak side to her once she removes her mask of being an Onee-Sama, what is left is her true side of "depending" on a man which is generally Issei. If danger arises to him, she will become depressed or it can also lead to a rise in her tension. The latter occurred when Issei was injured in the Rating Game between the Sitri and Gremory groups, and the former when Issei was thought to be dead in the Dimensional Gap. Despite being seductive toward Issei and acting like a mature young woman, Akeno is still innocent and emotional towards love and acts like a girl her age whenever she is on a date with Issei. However, this still does not stop her being seductive and flirting with Issei. Despite being seen calm and clear, Akeno does get jealous like the other girls and will fight for Issei.